Sun Weidong, was born in Xu Zhou of Jiangsu Province, China in September, 1966. He has a Bachelor's Degree.

1989-1996 Lecturer, then Deputy Division Director, China Foreign Affairs University

1996-1997 Second Secretary, Department of Asian Affairs, Ministry of Foreign Affairs of the People's Republic of China

1997-2000 Second Secretary, then First Secretary, Chinese Embassy in Malaysia

2000-2005 First Secretary, then Deputy Division Director and Division Director, Department of Asian Affairs, MOFA

2005-2008 Counsellor, Chinese Embassy in the Republic of India

2008-2008 Counsellor, Department of Policy Planning, MOFA

2008-2013 Deputy Director General, Department of Asian Affairs, MOFA

2013-2017 Ambassador Extraordinary and Plenipotentiary of the People's Republic of China to the Islamic Republic of Pakistan

2017-2019 Director General, Department of Policy Planning, MOFA

2019- Ambassador Extraordinary and Plenipotentiary of the People's Republic of China to the Republic of India 

Married with a daughter.